Gas-liquid separation structure for hydrogen fuel cell

Abstract

The utility model discloses a gas-liquid separation structure for a hydrogen fuel cell, which comprises a shell, the top of the shell is in threaded connection with a fixed block, a gas outlet fixedly connected with the fixed block is arranged on the fixed block in a penetrating manner, a dismounting mechanism is arranged between the shell and the fixed block, the side wall of the shell is fixedly communicated with a gas inlet, and the gas inlet is communicated with a gas outlet. The bottom of the shell is fixedly communicated with a drainage valve, a replacement mechanism is arranged between the shell and the drainage valve, a water absorption material is arranged in the shell, and the material of the shell is sequentially provided with a protective layer, a corrosion-resistant layer and a base layer from inside to outside. The water absorption material can effectively intercept and absorb liquid and assist in improving the gas-liquid separation effect, and the water absorption material can be replaced due to the fact that the fixing block is in threaded connection with the shell. And the shell is made of a material composed of the protective layer, the corrosion-resistant layer and the base layer, so that the shell has good wear resistance and corrosion resistance, and the service life of equipment is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of gas-liquid separation structure technology, and in particular to a gas-liquid separation structure for hydrogen fuel cells. Background Technology

[0002] With the increasing demands for energy and environmental protection, hydrogen fuel cells have become a research hotspot and development direction in the field of new energy due to their high efficiency and cleanliness. During the operation of a hydrogen fuel cell, the gas-liquid separation structure, as a key component, plays a crucial role in maintaining stable battery operation and ensuring power generation efficiency.

[0003] The connections between components in existing gas-liquid separation structures are not convenient enough, which makes equipment installation and maintenance difficult and increases maintenance and time costs. In terms of shell material, many existing structures use a single material without reasonable layering, which makes the shell susceptible to corrosion and wear from gas-liquid mixtures, resulting in a short service life and failing to meet the requirements for long-term stable operation of hydrogen fuel cells. To solve the above problems, this application proposes a gas-liquid separation structure for hydrogen fuel cells. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a gas-liquid separation structure for hydrogen fuel cells. The absorbent material can effectively intercept and adsorb liquid, thereby improving the gas-liquid separation effect. The fixing block and the shell are connected by threads, allowing the absorbent material to be replaced. The shell is designed with a material composition of a protective layer, a corrosion-resistant layer, and a base layer, giving it excellent wear and corrosion resistance and extending the service life of the equipment.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A gas-liquid separation structure for a hydrogen fuel cell includes a housing. A fixing block is threadedly connected to the top of the housing. An outlet is fixedly connected to the fixing block. A plug is fixedly connected to the top of the outlet. A disassembly mechanism is provided between the housing and the fixing block. A frustum is fixedly connected to the outer wall of the outlet. A groove is formed at the bottom of the frustum. An inlet is fixedly connected to the side wall of the housing. A drain valve is fixedly connected to the bottom of the housing. A replacement mechanism is provided between the housing and the drain valve. A water-absorbing material is provided inside the housing. The outer wall of the water-absorbing material abuts against the inner wall of the housing. The housing is made of a protective layer, a corrosion-resistant layer, and a base layer, from the inside out.

[0007] Preferably, the disassembly and assembly mechanism includes a threaded opening on the top of the housing, the outer wall of the fixing block is provided with an external thread, the inner wall of the threaded opening is provided with an internal thread that mates with the external thread, a sealing element is installed in the threaded opening, and the sealing element is abutted against the inner wall of the housing and the outer wall of the fixing block.

[0008] Preferably, the replacement mechanism includes a conveying port that extends through the bottom of the housing, and a threaded sealing head is fixedly connected to the top of the drain valve. The outer wall of the threaded sealing head and the inner wall of the conveying port are respectively provided with matching external threads and internal threads.

[0009] Preferably, a nitrogen venting valve is fixedly connected to the side wall of the housing.

[0010] Preferably, the outer wall of the housing is fixedly connected with a plurality of mounting ears, and each mounting ear is provided with a through mounting hole.

[0011] Preferably, the protective layer is a ceramic coating, the corrosion-resistant layer is a nickel-based alloy coating, and the base layer is an aluminum alloy.

[0012] Compared with the prior art, the advantages of this utility model are as follows:

[0013] 1. The fixed block and the housing are connected by threads, which makes the installation and disassembly of the equipment more convenient and greatly reduces the difficulty and time cost of equipment maintenance; the setting of the seal effectively prevents the leakage of gas-liquid mixture at the connection, significantly improving the sealing performance and operational safety of the equipment.

[0014] 2. The absorbent material can effectively intercept and adsorb liquid, helping to improve the gas-liquid separation effect, ensuring that subsequent equipment is not affected by impurities, and improving the overall system stability and reliability; the drain valve and the housing are also connected by threads, so that the drain valve can be quickly disassembled and replaced when it malfunctions, ensuring smooth liquid discharge and maintaining normal system operation.

[0015] 3. The nitrogen venting valve is designed to automatically open and release pressure when the internal pressure of the housing is too high, effectively preventing safety accidents caused by abnormal pressure and providing reliable safety assurance for equipment operation.

[0016] 4. The shell is designed with a protective layer, a corrosion-resistant layer and a base layer, which gives it good wear resistance and corrosion resistance, extends the service life of the equipment and better meets the requirements for long-term stable operation of hydrogen fuel cells.

[0017] In summary, the absorbent material can effectively intercept and adsorb liquids, thus improving the gas-liquid separation effect. The fixed block and the shell are connected by threads, allowing the absorbent material to be replaced. The shell is designed with a protective layer, a corrosion-resistant layer, and a base layer, giving it excellent wear and corrosion resistance and extending the service life of the equipment. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of a gas-liquid separation structure for a hydrogen fuel cell proposed in this utility model;

[0019] Figure 2 This is a side view of a gas-liquid separation structure for a hydrogen fuel cell proposed in this utility model.

[0020] Figure 3 for Figure 1 Schematic diagram of the structure at point AA;

[0021] Figure 4 This is a cross-sectional view of the material of a gas-liquid separation structure for a hydrogen fuel cell proposed in this utility model.

[0022] In the diagram: 1. Housing, 2. Air outlet, 3. Air inlet, 4. Drain valve, 5. Nitrogen vent valve, 6. Water absorption material, 7. Fixing block, 8. Seal, 9. Plug, 10. Mounting ear, 11. Round table, 12. Groove, 13. Conveying port, 14. Threaded sealing head, 15. Protective layer, 16. Corrosion resistant layer, 17. Base layer. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Reference Figures 1-4 A gas-liquid separation structure for a hydrogen fuel cell includes a housing 1, which serves as the main supporting component of the entire gas-liquid separation structure, for containing the gas-liquid mixture and providing a separation space. A fixing block 7 is threadedly connected to the top of the housing 1, and an outlet 2 is fixedly connected to the fixing block 7. A plug 9 is fixedly connected to the top of the outlet 2. The outlet 2 is used to discharge gas, and the plug 9 fixedly connected to its top facilitates connection with an external delivery pipeline to realize gas output.

[0025] A disassembly and assembly mechanism is provided between the housing 1 and the fixing block 7. The disassembly and assembly mechanism includes a threaded opening on the top of the housing 1, an external thread on the outer wall of the fixing block 7, and an internal thread on the inner wall of the threaded opening that matches the external thread. The fixing block 7 and the housing 1 are detachably connected through the threaded connection, which facilitates the installation and maintenance of the equipment and allows for the replacement of the water-absorbing material 6 inside the housing 1. A sealing element 8 is installed in the threaded opening. The sealing element 8 is set to abut against the inner wall of the housing 1 and the outer wall of the fixing block 7 to prevent the gas-liquid mixture from leaking at the connection point and to ensure the sealing performance of the equipment.

[0026] A frustum 11 is fixedly connected to the outer wall of the outlet 2. A groove 12 is provided at the bottom of the frustum 11. After the mixed gas enters the separator, liquid water and water vapor are separated and collected on the inner wall of the shell 1. They flow to the water-absorbing material 6 at the bottom (the water-absorbing material 6 can be water-absorbing cotton). The water-absorbing material 6 adsorbs and collects the gas, thus achieving gas-liquid separation. The dry gas is discharged through the outlet 2. An air inlet 3 is fixedly connected to the side wall of the shell 1. The air inlet 3 is used to inject the gas-liquid mixed gas to realize the gas-liquid transportation. A drain valve 4 is fixedly connected to the bottom of the shell 1. The drain valve 4 is used to control the discharge of the separated liquid.

[0027] A replacement mechanism is provided between the housing 1 and the drain valve 4. The replacement mechanism includes a conveying port 13 that passes through the bottom of the housing 1. A threaded sealing head 14 is fixedly connected to the top of the drain valve 4. The outer wall of the threaded sealing head 14 and the inner wall of the conveying port 13 are respectively provided with matching external threads and internal threads. The drain valve 4 and the housing 1 are detachably connected through the threaded connection, which facilitates the replacement and maintenance of the drain valve 4. A nitrogen venting valve 5 is fixedly connected to the side wall of the housing 1. The nitrogen venting valve 5 can be opened at timed intervals to vent nitrogen and ensure the safe operation of the equipment.

[0028] The housing 1 is provided with water-absorbing material 6. The outer wall of the water-absorbing material 6 is set against the inner wall of the housing 1 to intercept and adsorb liquid, assist in gas-liquid separation, and improve the separation effect. Multiple mounting ears 10 are fixedly connected to the outer wall of the housing 1. Each mounting ear 10 has a through mounting hole. The mounting ears 10 are used to fix the entire gas-liquid separation structure in the hydrogen fuel cell system. The structure is connected to the external fixed components through the mounting holes to ensure structural stability.

[0029] The shell 1 is made of a protective layer 15, a corrosion-resistant layer 16, and a base layer 17 from the inside out. The protective layer 15 is a ceramic coating, which is used to protect the internal structure and prevent the gas-liquid mixture from abrading the inner wall of the shell 1. The corrosion-resistant layer 16 is a nickel-based alloy coating, which enhances the corrosion resistance of the shell 1 and extends the service life of the equipment. The base layer 17 is an aluminum alloy, which provides structural strength and support for the entire shell 1 and ensures the stability of the shell 1.

Claims

1. A gas-liquid separation structure for a hydrogen fuel cell, comprising a housing (1), characterized in that, The top of the housing (1) is threaded with a fixing block (7), and the fixing block (7) is provided with an air outlet (2) fixedly connected to it. The top of the air outlet (2) is fixedly connected with a plug (9). A disassembly and assembly mechanism is provided between the housing (1) and the fixing block (7). A frustum (11) is fixedly connected to the outer wall of the air outlet (2). A groove (12) is provided at the bottom of the frustum (11). An air inlet (3) is fixedly connected to the side wall of the housing (1). A drain valve (4) is fixedly connected to the bottom of the housing (1). A replacement mechanism is provided between the housing (1) and the drain valve (4). A water-absorbing material (6) is provided inside the housing (1). The outer wall of the water-absorbing material (6) abuts against the inner wall of the housing (1). The materials of the housing (1) from the inside to the outside are a protective layer (15), a corrosion-resistant layer (16), and a base layer (17).

2. The gas-liquid separation structure for a hydrogen fuel cell according to claim 1, characterized in that, The disassembly and assembly mechanism includes a threaded opening on the top of the housing (1), the outer wall of the fixing block (7) is provided with an external thread, the inner wall of the threaded opening is provided with an internal thread that matches the external thread, a sealing element (8) is installed in the threaded opening, and the sealing element (8) is abutted against the inner wall of the housing (1) and the outer wall of the fixing block (7).

3. The gas-liquid separation structure for a hydrogen fuel cell according to claim 1, characterized in that, The replacement mechanism includes a conveying port (13) that extends through the bottom of the housing (1). The top of the drain valve (4) is fixedly connected to a threaded sealing head (14). The outer wall of the threaded sealing head (14) and the inner wall of the conveying port (13) are respectively provided with matching external threads and internal threads.

4. The gas-liquid separation structure for a hydrogen fuel cell according to claim 1, characterized in that, A nitrogen venting valve (5) is fixedly connected to the side wall of the housing (1).

5. The gas-liquid separation structure for a hydrogen fuel cell according to claim 1, characterized in that, The outer wall of the housing (1) is fixedly connected with a plurality of mounting ears (10), and each mounting ear (10) has a through mounting hole.

6. The gas-liquid separation structure for a hydrogen fuel cell according to claim 1, characterized in that, The protective layer (15) is a ceramic coating, the corrosion-resistant layer (16) is a nickel-based alloy coating, and the base layer (17) is an aluminum alloy.

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